Colorful puzzles · Curious eyes

Look a little
closer.

One tiny difference. One more try.
A playful collection of color, letter, and hidden-number puzzles for iPhone and iPad.

View on the App StoreExplore the game ↓

A fresh look is on the way. This page previews the upcoming 2.0.3 update; availability and features in the current App Store version may differ.

Simple to start. Satisfying to spot.

Find your kind of challenge.

Spot the odd color.

One tile breaks the pattern. Find it as the grid grows and the differences get more subtle.

Actual Kuku Kube color puzzle gameplay

Find the hidden digits.

Look through dots, mosaics, and layered patterns. Enter the number you see and flow into the next puzzle.

Actual Hidden Numbers gameplay with a number pad

Same letters? Look again.

A different letter is hiding in plain sight. Try Text or mix both challenges in Color & Text.

Actual Kuku Kube letter puzzle gameplay

A quick challenge. Or just one more.

Choose your pace

Race through a 60-second classic round, or play Endless with no countdown until your first mistake.

60 levels to explore

Discover six Hidden Numbers visual styles, earn stars, and revisit puzzles. Practice and Sprint add another way to play.

A little nudge

Use a Hint when a detail escapes you. Daily gifts, optional rewarded ads, and Hint packs are available in the Shop.

Screenshots show actual gameplay in the upcoming update. The game includes ads and optional in-app purchases. Remove Ads stops automatic banner and interstitial ads; optional rewarded ads remain available. Hint packs are consumable and saved on the device.